put this Download page generator up for now, 'cos its better.
put this Download page generator up for now, 'cos its better.

still to come:  separate pages for each platform and a new top-level Download
page that lists platforms with other commentary and links to the
per-platform pages (offsite if necessary).

ellson/graphviz-web-dynamic,ellson/graphviz-web-dynamic,ellson/graphviz-web-dynamic